TERRA.

Earth & Life, One Continuous Journey. From primordial magma oceans 4.6 billion years ago to the present—and onward into branching futures asking "What if humanity chose another path in 2050?"—TERRA. is a 3D planetary visualizer and realtime Earth clock at your fingertips. No timers, no pressure, no rush. Simply slide across deep time, steer humanity’s course beyond today, and watch the living planet transform. ■ WHAT IF HUMANITY CHOSE ANOTHER PATH IN 2050? A timeline of 4.6 billion years does not end in the present. Scrub past today to open an uncharted horizon from the 2050 Crossroads to the supercontinent Pangaea Ultima 250 million years ahead. • Ten Interconnected Choices: Shape your course across climate, clean energy, ocean and forest renewal, technology, and space. Pivot at 2050 or anytime mid-journey as sea ice, biomes, and night lights respond on the globe. • Living Worldlines: Even identical choices rarely lead to the same tomorrow. Unexpected turning points and quiet regional stories interweave differently on every voyage. • Twelve Veiled Endings: All 12 culminations remain hidden until you reach +250 million years yourself—leaving a bespoke Worldline Profile and exportable Future Chronicle card. ■ 4.6 BILLION YEARS ON ONE TIMELINE (FREE TO EXPLORE) Witness Hadean magma oceans, Snowball Earth, the Cambrian explosion, dinosaurs, ice ages, and modern city lights—driven by plate tectonic reconstructions and 22 biological clades. • Paleo-Continental Tracker: Pinpoint where your current location lay on ancient supercontinents via private on-device GPS or world cities. • 24,000m Borehole Core: Inspect vertical rock strata and index fossils (with Apple Pencil hover on supported iPads). • 366-Day Chronicle: Discover a curated milestone in Earth and space history for every calendar date. ■ A SERENE REALTIME EARTH CLOCK Pause your journey and telemetry fades away, leaving Earth rotating in 1:1 real time with global satellite clouds, diurnal light, lunar phases, 9,000 stars, and procedural Spatial Audio. ■ ECLIPSE OBSERVATORY & POSTCARDS • Celestial Observatory: Witness 11 historic and future solar and Blood Moon lunar eclipses from orbit. • 300 DPI Postcards: Save marker-free, museum-grade postcards of any era to Photos. ■ OPEN SCIENCE & HONEST BOUNDARIES Built on ICS stratigraphy, Cao et al. (2024) plate kinematics, GBIF & PBDB records, IPCC AR6 baselines, and NASA JPL ephemerides—paired with 4-tier evidence badges. * Future simulations are exploratory scenarios illuminating Earth-system connections, not deterministic forecasts. ■ TRANSPARENT PRICING & PRIVACY • All 4.6 billion years of Earth history, cores, vitals, and the Realtime Earth Clock are 100% free. • One-time TERRA. Passport (no subscriptions, Family Sharing supported) permanently unlocks Future Simulation, 22-clade filters, Eclipse Observatory, HDR bloom, and high-res card exports. • No accounts, no ads, zero tracking. Core features run completely offline.